Pull ec into release branch

[pandora-kernel.git] / net / ipv6 / exthdrs.c

diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 0711f92..fb39604 100644 (file)
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -16,7 +16,7 @@
  */
 
 /* Changes:
- *     yoshfuji                : ensure not to overrun while parsing 
+ *     yoshfuji                : ensure not to overrun while parsing
  *                               tlv options.
  *     Mitsuru KANDA @USAGI and: Remove ipv6_parse_exthdrs().
  *     YOSHIFUJI Hideaki @USAGI  Register inbound extension header
@@ -27,7 +27,6 @@
 #include <linux/types.h>
 #include <linux/socket.h>
 #include <linux/sockios.h>
-#include <linux/sched.h>
 #include <linux/net.h>
 #include <linux/netdevice.h>
 #include <linux/in6.h>
@@ -167,8 +166,8 @@ static int ip6_parse_tlv(struct tlvtype_proc *procs, struct sk_buff **skbp)
                                goto bad;
                        for (curr=procs; curr->type >= 0; curr++) {
                                if (curr->type == skb->nh.raw[off]) {
-                                       /* type specific length/alignment 
-                                          checks will be performed in the 
+                                       /* type specific length/alignment
+                                          checks will be performed in the
                                           func(). */
                                        if (curr->func(skbp, off) == 0)
                                                return 0;
@@ -363,10 +362,27 @@ static int ipv6_rthdr_rcv(struct sk_buff **skbp)
        struct inet6_skb_parm *opt = IP6CB(skb);
        struct in6_addr *addr = NULL;
        struct in6_addr daddr;
+       struct inet6_dev *idev;
        int n, i;
-
        struct ipv6_rt_hdr *hdr;
        struct rt0_hdr *rthdr;
+       int accept_source_route = ipv6_devconf.accept_source_route;
+
+       if (accept_source_route < 0 ||
+           ((idev = in6_dev_get(skb->dev)) == NULL)) {
+               kfree_skb(skb);
+               return -1;
+       }
+       if (idev->cnf.accept_source_route < 0) {
+               in6_dev_put(idev);
+               kfree_skb(skb);
+               return -1;
+       }
+
+       if (accept_source_route > idev->cnf.accept_source_route)
+               accept_source_route = idev->cnf.accept_source_route;
+
+       in6_dev_put(idev);
 
        if (!pskb_may_pull(skb, (skb->h.raw-skb->data)+8) ||
            !pskb_may_pull(skb, (skb->h.raw-skb->data)+((skb->h.raw[1]+1)<<3))) {
@@ -378,6 +394,22 @@ static int ipv6_rthdr_rcv(struct sk_buff **skbp)
 
        hdr = (struct ipv6_rt_hdr *) skb->h.raw;
 
+       switch (hdr->type) {
+#ifdef CONFIG_IPV6_MIP6
+               break;
+#endif
+       case IPV6_SRCRT_TYPE_0:
+               if (accept_source_route > 0)
+                       break;
+               kfree_skb(skb);
+               return -1;
+       default:
+               IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
+                                IPSTATS_MIB_INHDRERRORS);
+               icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, (&hdr->type) - skb->nh.raw);
+               return -1;
+       }
+
        if (ipv6_addr_is_multicast(&skb->nh.ipv6h->daddr) ||
            skb->pkt_type != PACKET_HOST) {
                IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
@@ -435,11 +467,6 @@ looped_back:
                }
                break;
 #endif
-       default:
-               IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
-                                IPSTATS_MIB_INHDRERRORS);
-               icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, (&hdr->type) - skb->nh.raw);
-               return -1;
        }
 
        /*
@@ -572,7 +599,7 @@ void __init ipv6_rthdr_init(void)
    For now we need to test the engine, so that I created
    temporary (or permanent) backdoor.
    If listening socket set IPV6_RTHDR to 2, then we invert header.
-                                                   --ANK (980729)
+                                                  --ANK (980729)
  */
 
 struct ipv6_txoptions *
@@ -635,7 +662,7 @@ static int ipv6_hop_ra(struct sk_buff **skbp, int optoff)
                return 1;
        }
        LIMIT_NETDEBUG(KERN_DEBUG "ipv6_hop_ra: wrong RA length %d\n",
-                      skb->nh.raw[optoff+1]);
+                      skb->nh.raw[optoff+1]);
        kfree_skb(skb);
        return 0;
 }
@@ -649,7 +676,7 @@ static int ipv6_hop_jumbo(struct sk_buff **skbp, int optoff)
 
        if (skb->nh.raw[optoff+1] != 4 || (optoff&3) != 2) {
                LIMIT_NETDEBUG(KERN_DEBUG "ipv6_hop_jumbo: wrong jumbo opt length/alignment %d\n",
-                              skb->nh.raw[optoff+1]);
+                              skb->nh.raw[optoff+1]);
                IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
                                 IPSTATS_MIB_INHDRERRORS);
                goto drop;
@@ -740,7 +767,7 @@ static void ipv6_push_rthdr(struct sk_buff *skb, u8 *proto,
        int hops;
 
        ihdr = (struct rt0_hdr *) opt;
-       
+
        phdr = (struct rt0_hdr *) skb_push(skb, (ihdr->rt_hdr.hdrlen + 1) << 3);
        memcpy(phdr, ihdr, sizeof(struct rt0_hdr));